Are there any designs of perhaps old geostationary satellites available online? After searching around I was mostly able to find either crude diagrams or designs for little cubesats, but nothing for satellites that were meant to stay in the orbit for an extended period of time.
A real satellite has hundreds if not thousands of documents associated with the project from high level assembly drawings to low level fixturing and assembly diagrams. Documents from specific projects are usually protected by either the company of the country that has created them because of competition and national secrecy, but I can direct you to some general textbooks and learning resources if you are interested in how a system such as that gets designed.
A good place to start is by reading a textbook called Space Mission Analysis and Design edited by Wiley J. Larson and James R. Wertz, which is a book that takes you through all parts of running a successful space program. You can start in Chapter 10 Spacecraft Design and Sizing, and work your way through Chapter 17.
There are some made-up spacecraft in that book that might be just what you are looking for.
A very poor PDF copy can be viewed at
but I recommend that you get your hands on a hard copy and flip through it; it's 500 pages long and that's almost impossible to browse via pdf.
I wonder though if you could be a bit more specific as to what you are looking for? When you say design are you looking for mechanical drawings, electrical drawings, orbital parameters, dynamic simulation models, station-keeping code, RF link spreadsheets.... ? That might help me to better address some specific issues you are interested in.
Specificity could turn a mammoth into an ant
Spacecraft designs are usually complex and would consist of several different categories of diagrams detailing each system separately. Sputnik 1 could be expected to have a nice single diagram, needing no extra detail. But modern spacecraft usually have an array of systems working with each other, it would be apt to say that each system could be take up a single diagram to summarise itself.
An outline drawing would show major components without divulging into much elaboration, but might help.
An outline provided below, as an example:
Why it is not easy to find stuff
If you're looking for outline designs, you could search for popular geostationary satellites by name, but don't expect to unearth much. Most important drawings would be out of public reach, usually created with intellecual property rights protecting them. Remember that millions of dollars have been put into spacecraft R&D, so it's unlikely that they'll offer their hard work to free amateurs and/or potentially rival nations.
Some (possibly) useful resources
- I did find an interesting and useful site on history.nasa.gov which offers some detailed drawings of popular spacecraft developed by NASA. It might be of interest to you.
- NASA also allows access to a large part of its archive, released through the NTRS (NASA Technical Reports Server) but it will take a long time of patient searching to find technical drawings in such a vast database.
While I haven't exactly stuck with the "geostationary" thing, I believe your motivation to add that was to avoid getting jpeg's of cubesat diagrams.